Tysonís strength has always been based on intimidation. In the early stages of his career he was a fearsome fighter who, unquestionably, had an aura of invincibility and animalistic fury.

You saw people intimidated by him, like the fight with Michael Spinks when his opponent looked like a rabbit caught in the headlights of a car. He absolutely froze in front of Tyson and took a pummelling as a result.

From maybe the early 1990s onwards, mentally he seems to have become an increasingly unstable character. Heís had a lot of problems outside the ring and has served time in prison. For me, his aura of invincibility was exploded by Evander Holyfield in that first fight in 1996. Holyfield worked out the way to beat him and was not intimidated by him.

If Tyson can keep it together when Lewis employs, as I suspect, holding tactics and tries to push Tyson around, then he has a great chance. If Lewis turns out to be the stronger man and Tyson loses his composure, then Lewis wins.